4 percent diagnosed with segmental vitiligo, were treated with 
the psuedocatalase activated by sunlight, causing the pigmentation of the skin and eyebrows to be restored.
Vitiligo is probably the commonest cause of depigmentation and generates a lot of concern due 
to the fact that it causes not only depigmentation but also makes the skin color very uneven and patchy , and hence unsightly.
It might be surprising news to you, but a lot of 
these Vitiligo sufferers try to hide the patches with tattoos.